diff options
Diffstat (limited to 'Modules/clinic/fcntlmodule.c.h')
-rw-r--r-- | Modules/clinic/fcntlmodule.c.h | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/Modules/clinic/fcntlmodule.c.h b/Modules/clinic/fcntlmodule.c.h new file mode 100644 index 0000000..5e3b1c0 --- /dev/null +++ b/Modules/clinic/fcntlmodule.c.h @@ -0,0 +1,185 @@ +/*[clinic input] +preserve +[clinic start generated code]*/ + +PyDoc_STRVAR(fcntl_fcntl__doc__, +"fcntl($module, fd, cmd, arg=0, /)\n" +"--\n" +"\n" +"Perform the operation `cmd` on file descriptor fd.\n" +"\n" +"The values used for `cmd` are operating system dependent, and are available\n" +"as constants in the fcntl module, using the same names as used in\n" +"the relevant C header files. The argument arg is optional, and\n" +"defaults to 0; it may be an int or a string. If arg is given as a string,\n" +"the return value of fcntl is a string of that length, containing the\n" +"resulting value put in the arg buffer by the operating system. The length\n" +"of the arg string is not allowed to exceed 1024 bytes. If the arg given\n" +"is an integer or if none is specified, the result value is an integer\n" +"corresponding to the return value of the fcntl call in the C code."); + +#define FCNTL_FCNTL_METHODDEF \ + {"fcntl", (PyCFunction)fcntl_fcntl, METH_VARARGS, fcntl_fcntl__doc__}, + +static PyObject * +fcntl_fcntl_impl(PyModuleDef *module, int fd, int code, PyObject *arg); + +static PyObject * +fcntl_fcntl(PyModuleDef *module, PyObject *args) +{ + PyObject *return_value = NULL; + int fd; + int code; + PyObject *arg = NULL; + + if (!PyArg_ParseTuple(args, "O&i|O:fcntl", + conv_descriptor, &fd, &code, &arg)) + goto exit; + return_value = fcntl_fcntl_impl(module, fd, code, arg); + +exit: + return return_value; +} + +PyDoc_STRVAR(fcntl_ioctl__doc__, +"ioctl($module, fd, request, arg=0, mutate_flag=True, /)\n" +"--\n" +"\n" +"Perform the operation `request` on file descriptor `fd`.\n" +"\n" +"The values used for `request` are operating system dependent, and are available\n" +"as constants in the fcntl or termios library modules, using the same names as\n" +"used in the relevant C header files.\n" +"\n" +"The argument `arg` is optional, and defaults to 0; it may be an int or a\n" +"buffer containing character data (most likely a string or an array).\n" +"\n" +"If the argument is a mutable buffer (such as an array) and if the\n" +"mutate_flag argument (which is only allowed in this case) is true then the\n" +"buffer is (in effect) passed to the operating system and changes made by\n" +"the OS will be reflected in the contents of the buffer after the call has\n" +"returned. The return value is the integer returned by the ioctl system\n" +"call.\n" +"\n" +"If the argument is a mutable buffer and the mutable_flag argument is false,\n" +"the behavior is as if a string had been passed.\n" +"\n" +"If the argument is an immutable buffer (most likely a string) then a copy\n" +"of the buffer is passed to the operating system and the return value is a\n" +"string of the same length containing whatever the operating system put in\n" +"the buffer. The length of the arg buffer in this case is not allowed to\n" +"exceed 1024 bytes.\n" +"\n" +"If the arg given is an integer or if none is specified, the result value is\n" +"an integer corresponding to the return value of the ioctl call in the C\n" +"code."); + +#define FCNTL_IOCTL_METHODDEF \ + {"ioctl", (PyCFunction)fcntl_ioctl, METH_VARARGS, fcntl_ioctl__doc__}, + +static PyObject * +fcntl_ioctl_impl(PyModuleDef *module, int fd, unsigned int code, + PyObject *ob_arg, int mutate_arg); + +static PyObject * +fcntl_ioctl(PyModuleDef *module, PyObject *args) +{ + PyObject *return_value = NULL; + int fd; + unsigned int code; + PyObject *ob_arg = NULL; + int mutate_arg = 1; + + if (!PyArg_ParseTuple(args, "O&I|Op:ioctl", + conv_descriptor, &fd, &code, &ob_arg, &mutate_arg)) + goto exit; + return_value = fcntl_ioctl_impl(module, fd, code, ob_arg, mutate_arg); + +exit: + return return_value; +} + +PyDoc_STRVAR(fcntl_flock__doc__, +"flock($module, fd, operation, /)\n" +"--\n" +"\n" +"Perform the lock operation `operation` on file descriptor `fd`.\n" +"\n" +"See the Unix manual page for flock(2) for details (On some systems, this\n" +"function is emulated using fcntl())."); + +#define FCNTL_FLOCK_METHODDEF \ + {"flock", (PyCFunction)fcntl_flock, METH_VARARGS, fcntl_flock__doc__}, + +static PyObject * +fcntl_flock_impl(PyModuleDef *module, int fd, int code); + +static PyObject * +fcntl_flock(PyModuleDef *module, PyObject *args) +{ + PyObject *return_value = NULL; + int fd; + int code; + + if (!PyArg_ParseTuple(args, "O&i:flock", + conv_descriptor, &fd, &code)) + goto exit; + return_value = fcntl_flock_impl(module, fd, code); + +exit: + return return_value; +} + +PyDoc_STRVAR(fcntl_lockf__doc__, +"lockf($module, fd, cmd, len=0, start=0, whence=0, /)\n" +"--\n" +"\n" +"A wrapper around the fcntl() locking calls.\n" +"\n" +"`fd` is the file descriptor of the file to lock or unlock, and operation is one\n" +"of the following values:\n" +"\n" +" LOCK_UN - unlock\n" +" LOCK_SH - acquire a shared lock\n" +" LOCK_EX - acquire an exclusive lock\n" +"\n" +"When operation is LOCK_SH or LOCK_EX, it can also be bitwise ORed with\n" +"LOCK_NB to avoid blocking on lock acquisition. If LOCK_NB is used and the\n" +"lock cannot be acquired, an IOError will be raised and the exception will\n" +"have an errno attribute set to EACCES or EAGAIN (depending on the operating\n" +"system -- for portability, check for either value).\n" +"\n" +"`len` is the number of bytes to lock, with the default meaning to lock to\n" +"EOF. `start` is the byte offset, relative to `whence`, to that the lock\n" +"starts. `whence` is as with fileobj.seek(), specifically:\n" +"\n" +" 0 - relative to the start of the file (SEEK_SET)\n" +" 1 - relative to the current buffer position (SEEK_CUR)\n" +" 2 - relative to the end of the file (SEEK_END)"); + +#define FCNTL_LOCKF_METHODDEF \ + {"lockf", (PyCFunction)fcntl_lockf, METH_VARARGS, fcntl_lockf__doc__}, + +static PyObject * +fcntl_lockf_impl(PyModuleDef *module, int fd, int code, PyObject *lenobj, + PyObject *startobj, int whence); + +static PyObject * +fcntl_lockf(PyModuleDef *module, PyObject *args) +{ + PyObject *return_value = NULL; + int fd; + int code; + PyObject *lenobj = NULL; + PyObject *startobj = NULL; + int whence = 0; + + if (!PyArg_ParseTuple(args, "O&i|OOi:lockf", + conv_descriptor, &fd, &code, &lenobj, &startobj, &whence)) + goto exit; + return_value = fcntl_lockf_impl(module, fd, code, lenobj, startobj, whence); + +exit: + return return_value; +} +/*[clinic end generated code: output=92963b631d00f0fe input=a9049054013a1b77]*/ |